Oh, thank you =DThere's still some 11 hours to go until june 1, but then I turn 30. Ack.

To celebrate both turning 30, and starting the new job on monday, I went out for dinner with a couple of friends last night.I had a huge steak, some really nice wine, and a somewhat redundant desert. After that, we moved on to a calm pub for "a few" drinks.

You've got the formula wrong ... it's 365 days divided amongst 6bn, which when translated into maths speak is 6bn/365 Which actually makes an interesting recurring decimal figure. But otherwise about 16 million people will likely have that birthday... that is, of course, if it were evenly distributed... which it strangely isn't!

You've got the formula wrong ... it's 365 days divided amongst 6bn, which when translated into maths speak is 6bn/365 Which actually makes an interesting recurring decimal figure. But otherwise about 16 million people will likely have that birthday... that is, of course, if it were evenly distributed... which it strangely isn't!

Cas

Damn you just beat me to it I'd just say 1 out of 365 chance you have the same birthday. Didn't know about that birthday paradox though, interesting

You've got the formula wrong ... it's 365 days divided amongst 6bn, which when translated into maths speak is 6bn/365 Which actually makes an interesting recurring decimal figure. But otherwise about 16 million people will likely have that birthday... that is, of course, if it were evenly distributed... which it strangely isn't!

Precisely - so the sinister coincidence that started this diversionary thread was in fact not a sinister coincidence at all, but almost a complete certainty that someone in here was going to have the same birthday as Markus!

The odds of someone out of a group of 50 people having the same bday as me is 1-(364/365)^49, or about 12%.The odds of two people out of a group of 50 people having the same bday as each other is about 97%.

The "paradox" lies in people understanding the first one as true (it's fairly simple math), but being suprised of the second one. It's related to the pidgeon hole principle.No matter how large the group is, the odds of someone having the same bday as me will never be 100%.But for a group of size 366 or larger, there's always a 100% chance of two or more people having the same birthday.

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